INTERNAL CONTROL ANALYSIS OF MOTORCYCLE AFTER-SALES SERVICE TRANSACTION RECORDING: A CASE STUDY OF PT ALFA SCORPII BILAL MEDAN

Abstract

Motorcycle after-sales service stations represent high-volume retail environments where operational velocity and spare parts inventory turnover intersect directly with financial accounting accuracy. This empirical case study critically analyzes the design, implementation, and operational efficacy of internal control systems governing motorcycle maintenance transaction recording at PT Alfa Scorpii Bilal—an authorized primary Yamaha sales, service, and spare parts (3S) dealership in Medan, North Sumatra. Employing a qualitative descriptive field study design, primary empirical evidence was gathered through direct participant observation, comprehensive documentary review of service accounting artifacts (Work Orders [SPK], manual Service Invoices [Faktur Service], physical inventory requisition slips, and cash receipts), and in-depth semi-structured interviews with key operational personnel, comprising the Workshop Head (Kepala Bengkel), Service Administrator (Admin Service), Workshop Mechanic, and Dealership Cashier. Data evaluation was structured around the COSO Internal Control-Integrated Framework (control environment, risk assessment, control activities, information and communication, and monitoring) analyzed through the Miles and Huberman interactive qualitative model (data reduction, data display, and conclusion verification). Research findings demonstrate that while fundamental structural controls are established—such as formal organizational segregation of operational roles, basic computerized point-of-sale logging, and supervisory presence—critical internal control deficiencies persist in day-to-day operations. Notably, transaction recording remains heavily dependent on semi-manual paper service invoices that lack automated validation mechanisms. During peak operating hours (processing 600 to 1,200 motorcycle services monthly), high administrative workloads induce human error, resulting in mechanical input mistakes, transactional delays, and communication disconnects between mechanics and administrative personnel. Consequently, tangible discrepancies emerge: spare parts installed on customer motorcycles differ from items invoiced, official retail catalog price lists diverge from invoiced amounts (e.g., clutch plates priced at IDR 125,000 billed at IDR 100,000), and unbilled spare parts cause inventory shrinkage. These systemic recording errors undermine financial reporting reliability by distorting service revenue, miscalculating Cost of Goods Sold (COGS), generating cash register variances, and creating book-to-physical inventory gaps. In conclusion, internal controls at PT Alfa Scorpii Bilal operate functionally but sub-optimally. To ensure financial data integrity and mitigate fraud risks, the dealership must implement an end-to-end Enterprise Resource Planning (ERP) database with mandatory double-check validation protocols, barcode scanning for spare parts requisition, daily multi-tiered cash-inventory reconciliations, and structured supervisory monitoring.